/* ==========================================
   Energetika Ltd - Animations & Transitions
   ========================================== */

/* Scroll-triggered animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.delay-3 { transition-delay: 0.3s; }
.animate-on-scroll.delay-4 { transition-delay: 0.4s; }
.animate-on-scroll.delay-5 { transition-delay: 0.5s; }
.animate-on-scroll.delay-6 { transition-delay: 0.6s; }

/* Card hover effects */
.card-hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* Gradient border animation */
.gradient-border {
    position: relative;
    border-radius: var(--border-radius-lg);
}

.gradient-border::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: calc(var(--border-radius-lg) + 2px);
    background: var(--gradient-primary);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gradient-border:hover::before {
    opacity: 1;
}

/* Shimmer effect */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.shimmer {
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.05) 50%, 
        transparent 100%);
    background-size: 200% 100%;
    animation: shimmer 3s ease-in-out infinite;
}

/* Counter animation */
@keyframes count-up {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.counter-animate {
    animation: count-up 0.6s ease-out;
}

/* Ripple effect */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

/* Page transitions */
.page-enter {
    animation: pageEnter 0.5s ease-out;
}

@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Typewriter cursor */
@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

.typewriter-cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background: var(--color-accent);
    margin-left: 4px;
    animation: blink 1s ease-in-out infinite;
    vertical-align: text-bottom;
}

/* Glow pulse */
@keyframes glow-pulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(255, 69, 0, 0.2);
    }
    50% {
        box-shadow: 0 0 40px rgba(255, 69, 0, 0.4);
    }
}

.glow-pulse {
    animation: glow-pulse 2s ease-in-out infinite;
}

/* Slide in from sides */
.slide-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.slide-in-left.animated {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.slide-in-right.animated {
    opacity: 1;
    transform: translateX(0);
}

/* Fade scale */
.fade-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-scale.animated {
    opacity: 1;
    transform: scale(1);
}

/* Loading spinner */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Skeleton loading */
@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.skeleton {
    background: linear-gradient(90deg, 
        var(--color-border) 25%, 
        rgba(255, 255, 255, 0.08) 50%, 
        var(--color-border) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--border-radius-sm);
}

/* Hover underline animation */
@keyframes underline-expand {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

.hover-underline {
    position: relative;
}

.hover-underline::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease, left 0.3s ease;
    transform: translateX(-50%);
}

.hover-underline:hover::after {
    width: 100%;
}

/* Notification badge pulse */
@keyframes badge-pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.badge-pulse {
    animation: badge-pulse 2s ease-in-out infinite;
}